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The compact Duetto Submersible Power Filter is the perfect multi-use filter for all aquariums up to 20 gallons. It combines silent, 3-stage filtration efficiency with an adjustable flow control up to 55 gph, operational ease and a multitude of interchangeable application options-from desktop aquariums, to fountains to reptile and amphibian habitats.

The filter's compact design facilitates vertical or horizontal placement in water of varying depths and tanks of all sizes. The filters patented air injection system insures optimal water oxygenation and aeration at all times. The convenient filtration media cartridges are ready to use and change in seconds without messy assembly.

Mechanical Filtration is provided by high density fibers that trap dirt and fish debris for easy removal. The course foam block provides Biological Filtration that neutralizes toxic ammonia and nitrites. Premium activated carbon that eliminates bad smells and harmful impurities provides chemical filtration in the Duetto. All three filters are quick and easy to remove and refill.

I used this filter in my turtle's aquarium. The suction cups and adjustable flow direction made it very easy to place in the water without the waterfall noise. Filtered the turtle's waste efficiently and the media is very easy to clean. The two sponges can be rinsed. I snipped the plastic holder for the carbon with wire cutters and empty and replaced the carbon bimonthly, and this cut down on the cost of media.